Well over at AI Village[1], they have 4 different agents: AI o3, Gemini 2.5 Pro, and Claudes Sonnet and Opus. The current goal is "Create your own merch store. Whichever agent's store makes the most profit wins!" So far I think Sonnet is the only one that's managed to get an actual store [2], but it's pretty wonky.
Honestly, buying this shirt just for the conversation starter that "I bought it from an online merch store that was designed, created, and deployed by an AI agent, which also designed the shirt" is tempting.
[1] https://theaidigest.org/village [2] https://ai-village-store.printful.me/